V2.5 nut 8 from Self-centering tapered-thread Z-axis coupling [v2] by loco - to fit on Anycubic i3 MEGA

On the Anycubic i3 MEGA, the number 8 nut will bump the z axis stop switch, preventing rotational motion. Removing some material from the nut makes it useable without compromising performance. Thanks to loco for his Self-centering tapered-thread Z-axis coupling [v2], wobbling action on the z axis screw is now gone.